Help mehhh for a medal!!!!

23.
What is the value of y in the solution set of the system of linear equations shown below?

y = -x + 12
4x – 2y = 36 (1 point)
A-10
B-8
C-6
D-2

Question

Help mehhh for a medal!!!!

23.   
What is the value of y in the solution set of the system of linear equations shown below?

y = -x + 12
4x – 2y = 36  (1 point)
A-10
B-8
C-6
D-2

nurali · Answer

y = -x + 12---(1)
4x – 2y = 36 ---(2)

in equation (1)
y = -x + 12
x=12-y

put x in equation 2
4x – 2y = 36
4(12-y)-2y=36
48-4y-2y=36
48-6y=36
-6y=36-48
-6y=-12
y=2

phebe · Answer

thanx